Hastelloy sheet

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Product Introduction

Material Characterization

When Hastelloy alloy is applied in power plants, its material characteristics include chemical composition, mechanical properties, and corrosion resistance. The following is a more detailed description of the material characteristics of Hastelloy alloy in power plants:
    1. Chemical composition:

The chemical composition of Hastelloy alloy usually includes a combination of elements such as nickel, chromium, molybdenum, and iron. For example, the typical composition of Hastelloy C276 is: nickel (Ni) about 65%, chromium (Cr) about 16%, molybdenum (Mo) about 16%, iron (Fe) about 5%, which also contains small amounts of elements such as molybdenum, copper, titanium, and aluminum.
    2. Mechanical performance:
Strength: Hastelloy alloy has excellent high-temperature strength, and its tensile strength at room temperature is usually above 690 MPa (100 ksi).
Ductility: It has good plasticity, and the elongation at room temperature is usually above 40%.
Hardness: The hardness at room temperature is usually between Rockwell C 20 and 40, with good processing performance.
    3. Corrosion resistance:
Resistance to acidic media: Hastelloy alloy has excellent corrosion resistance to acidic media such as sulfuric acid and hydrochloric acid, and is suitable for desulfurization equipment, chemical treatment equipment, etc.
Resistance to alkaline media: It also has good alkali resistance and can be used stably for a long time in alkaline environments.
Resistance to oxidizing media: Hastelloy alloy has excellent oxidation resistance in high-temperature and high oxygen environments, suitable for high-temperature combustion chambers, heat exchangers and other components.
    4. High temperature resistance:

Some components in power plants need to withstand extreme high temperature environments, such as combustion chambers, gas turbine nozzles, boiler pipelines, etc. Hastelloy alloy has excellent high-temperature strength and oxidation resistance, which can maintain stable performance in these high-temperature environments.
    5. Wear resistance:

Some equipment in power plants may be subject to wear and tear from particulate matter and high-speed fluids, such as pumps, valves, etc. Some Hastelloy alloys have good wear resistance, which can resist these wear and prolong the service life of the equipment.
    6. Antioxidant properties:

In high-temperature environments, some components may be exposed to oxidizing atmospheres, making them prone to oxidation and corrosion. Hastelloy alloy has excellent oxidation resistance, which can resist the erosion of these oxidation media and maintain the stability of the components.

Type

Hastelloy alloy is a type of nickel based alloy, commonly including Hastelloy C276, Hastelloy C22, Hastelloy X, Hastelloy B, Hastelloy B2, Hastelloy B3, Hastelloy G, and Hastelloy G-30. They have slight differences in composition and performance. Below is an introduction to their composition analysis and differences:
    1. Hastelloy C276:

• Composition analysis: Contains approximately 65% nickel (Ni), 16% chromium (Cr), 16% molybdenum (Mo), 5% iron (Fe), and small amounts of cobalt (Co), molybdenum (Mo), and copper (Cu).
• Features: It has excellent corrosion resistance, especially in acidic environments, as well as good oxidation and heat resistance.

    2.Hastelloy C22:

• Composition analysis: Contains approximately 56% nickel (Ni), 22% chromium (Cr), 13% molybdenum (Mo), 3% iron (Fe), 3% molybdenum (Mo), and 2.5% molybdenum (W).
• Features: Compared with C276, C22 has superior corrosion resistance, excellent corrosion resistance to various acidic and oxidizing media, as well as good oxidation resistance and heat resistance.

    3 Hastelloy X:

• Composition analysis: Contains approximately 47% nickel (Ni), 22% chromium (Cr), 18.5% tungsten (W), 9% iron (Fe), and 1.5% cobalt (Co).
• Features: It has excellent high-temperature strength and oxidation resistance, suitable for manufacturing parts in high-temperature and high-pressure environments, such as gas turbine blades and combustion chamber components.

    4.Hastelloy B:

• Composition analysis: Contains approximately 70% nickel (Ni) and 30% rhenium (Re).
• Features: Mainly used for manufacturing reactors, trays, etc. in chemical treatment equipment, with good corrosion resistance and high temperature resistance.

    5.Hastelloy B2:

• Composition analysis: Contains approximately 67% nickel (Ni) and 28.5% rhenium (Re).
• Characteristic: Compared with B, B2 has a higher molybdenum content, thus exhibiting better corrosion resistance in some corrosive media.

    6.Hastelloy B3:

• Composition analysis: Contains approximately 65% nickel (Ni) and 28.5% rhenium (Re).
• Features: Compared to B2, B3 has better resistance to intergranular corrosion during welding, making it suitable for situations with high requirements for welding and hot working processes.

    7.Hastelloy G:

• Composition analysis: Contains approximately 65% nickel (Ni) and 30% chromium (Cr).
• Features: It has good oxidation resistance and corrosion resistance, suitable for manufacturing parts under high temperature and high pressure conditions.

    8.Hastelloy G-30:

• Composition analysis: Contains approximately 69% nickel (Ni), 30% chromium (Cr), and 2.5% molybdenum (Mo).
• Features: Excellent corrosion and oxidation resistance, excellent performance in acidic and oxidizing media, suitable for chemical applications

Advantage

Processing

    1. Raw material preparation: Firstly, it is necessary to prepare raw materials that meet the specific requirements of the Hastelloy alloy grade. These raw materials are usually metal powders or alloy billets, which contain various elements required for Hastelloy alloys.
    2. Alloy melting: Put the raw materials into a high-temperature furnace for melting to fully mix various elements and form the required alloy liquid. During the smelting process, strict control of temperature, atmosphere, and time is required to ensure that the composition and quality of the alloy meet the requirements.
    3. Forging or casting: Pour the molten alloy liquid into a pre designed mold for forging or casting. Forging is suitable for manufacturing complex parts or large components, while casting is suitable for manufacturing simple shaped parts or mass production.
    4. Heat treatment: After forging or casting, parts need to undergo heat treatment to eliminate residual stress, improve microstructure, and enhance material properties. The heat treatment process usually includes annealing, solution treatment, aging treatment, etc.
    5. Machining: Machine the heat-treated parts, including turning, milling, drilling, etc., to achieve the final size and surface accuracy requirements.
    6. Surface treatment: According to specific requirements, perform surface treatment on the parts, such as polishing, sandblasting, coating, etc., to improve surface smoothness, corrosion resistance, and assembly performance.
    7. Quality inspection: Conduct quality inspection on the manufactured Hastelloy alloy parts, including chemical composition analysis, metallographic observation, mechanical performance testing, dimensional inspection, etc., to ensure that the parts meet design requirements and standards.
    8. Assembly: Assemble the manufactured Hastelloy alloy parts into the final equipment or components, such as boiler pipelines, gas turbine components, desulfurization equipment, etc.

Application

1. Boiler components: Hastelloy alloy is commonly used to manufacture pipes, bundles, fittings, and heat exchangers in boilers. These components need to have excellent corrosion resistance and high-temperature performance to cope with the high temperature and corrosive media generated during the combustion process.
2. Gas turbine components: Hastelloy alloy can be used to manufacture high-temperature components in gas turbines, such as turbine blades, turbine discs, and combustion chambers. These components need to withstand extreme high temperatures and pressures while maintaining stable performance.
3. Desulfurization equipment: Power plants usually use desulfurization equipment to reduce sulfur dioxide emissions in flue gas. Hastelloy alloy has excellent corrosion resistance and can be used to manufacture various components in desulfurization equipment, such as absorption towers and nozzles.
4. Chemical treatment equipment: Chemical treatment is often required in power plants to treat wastewater and exhaust gases, in order to reduce their impact on the environment. Hastelloy alloy can be used to manufacture reactors, trays, and pipelines in chemical treatment equipment to cope with corrosive media in wastewater and exhaust gases.
5. Heating station equipment: Hastelloy alloy can also be used to manufacture various components in heating station equipment, such as heat exchangers, coolers, and heaters, to provide stable heat transfer and thermal efficiency.

Packaging and delivery

Lead time

Customization

• Customized logo 
• Customized packaging
• Graphic customization

For more customization details, message supplier

Surface Coating Technology

Why Choose us

As one of the largest casting factories in China, we have 20 + years of experience. I'd like to introduce our factory in detail for you:

• Adopt technology: lost wax investment casting, sand casting, shell mold casting, lost foam casting, vacuum casting and CNC machining, etc.
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FAQ

Q1.Are you trading company or manufacturer?

A:OBT was established In 2003,speclallzing in the production of casting, CNC machining, forged titanlum alloys, high temperature alloys, brass products and one-stop technical solutions for more than 20 years.

Q2. Do you customize products according to our design drawings ?

A:Yes, we are a professional metal manufacturing factory with an experlenced engineering team that can make customized products according to customer drawings. We can also reverse-engineer drawings based on samples to produce large quantitles of goods.

Q3. WIll my design drawings be safe when you get It?

A:Yes, we will not publish your design to a third party unless your permission Is obtalned. We can sign NDA before you send the drawings.

Q4:How to avold mass order quality problems?

A:Strengthen prior prevention and Inspection of the production and processing process, regard Important processes as the focus of quallty control, and track Inspection and defense throughout the process. It can provide Spectrometer,MM, Tensile testing machine, Impact tester, Hardness tester, X-Ray,Salt spray test box, Pneumatic detection, UV accelerated weathering tester,dynamic balancing, high-temperature tensile testing, fluorescence test,room temperature mechanical property testing and other testing.

Q5.What's your dellvery time?

A:In general, the dellvery time Is within 15-90 days after payment. Q6.What Is the speed of the Impeller? What's the highest temperature It can withstand? A:The Impeller speed can reach 12,000 pm, and the high temperature resistance can reach 1,200 degrees Celslus. Depending on the material, the high temperature resistance of the product Is different.

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